Which device is used to stop blood flow to a specific surgical site?

• A. Blood Warmer
• B. Auto Tourniquet
• C. Surgical Robot
• D. Radiant Warmer

Answer: (B)

A tourniquet is used to stop blood flow to a surgical site by applying controlled pressure around the limb or area to occlude arterial inflow (and often venous outflow), creating a bloodless field for the surgeon. An auto tourniquet is a device that automatically inflates to a chosen pressure and maintains occlusion for a defined period, providing consistent, reliable control of bleeding without continuous manual adjustment. The other devices have different roles: a blood warmer raises temperature to prevent hypothermia, a surgical robot assists in performing the procedure but does not specifically stop blood flow, and a radiant warmer is used to keep a patient warm. Thus, the auto tourniquet is the device designed to stop blood flow to a specific surgical site.